From: Linus Torvalds <torvalds@linux-foundation.org>
To: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Jesse Barnes <jesse.barnes@intel.com>,
Andreas Schwab <schwab@suse.de>, Len Brown <lenb@kernel.org>,
Ingo Molnar <mingo@elte.hu>
Subject: Re: PCI PM: Restore standard config registers of all devices early
Date: Mon, 2 Feb 2009 20:09:57 -0800 (PST) [thread overview]
Message-ID: <alpine.LFD.2.00.0902022008060.3247@localhost.localdomain> (raw)
In-Reply-To: <1233633315.16867.45.camel@pasglop>
On Tue, 3 Feb 2009, Benjamin Herrenschmidt wrote:
>
> The new code will basically make the core bring back everything to D0 on
> resume. That's a huge power surge and often not needed at all...
Well, we could easily do it only if it was D0 _before_ resume.
But quite frankly, before I worry about "huge power surge" issues, I want
to feel like the architecture allows for clueless driver writers, and
still giving us reliable suspend/resume.
Once we have that reliability, and only _then_, do I care at all about
power issues. Make it work first, and not result in a dead machine if
there is unlucky shared interrupt timings.
Linus
next prev parent reply other threads:[~2009-02-03 4:10 UTC|newest]
Thread overview: 98+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <200901261904.n0QJ4Q9c016709@hera.kernel.org>
2009-02-02 9:54 ` PCI PM: Restore standard config registers of all devices early Benjamin Herrenschmidt
2009-02-02 17:06 ` Linus Torvalds
2009-02-02 20:29 ` Benjamin Herrenschmidt
2009-02-02 20:41 ` Linus Torvalds
2009-02-02 21:00 ` Benjamin Herrenschmidt
2009-02-02 21:32 ` Rafael J. Wysocki
2009-02-02 20:33 ` Benjamin Herrenschmidt
2009-02-02 20:50 ` Linus Torvalds
2009-02-02 20:55 ` Linus Torvalds
2009-02-02 21:19 ` Benjamin Herrenschmidt
2009-02-02 21:39 ` Rafael J. Wysocki
2009-02-02 22:05 ` Linus Torvalds
2009-02-02 22:09 ` Linus Torvalds
2009-02-02 22:31 ` Rafael J. Wysocki
2009-02-02 23:18 ` Linus Torvalds
2009-02-02 23:45 ` Rafael J. Wysocki
2009-02-02 23:59 ` Linus Torvalds
2009-02-03 0:15 ` Rafael J. Wysocki
2009-02-03 0:28 ` Linus Torvalds
2009-02-03 1:12 ` Benjamin Herrenschmidt
2009-02-03 1:32 ` Linus Torvalds
2009-02-03 1:46 ` Benjamin Herrenschmidt
2009-02-03 3:30 ` Benjamin Herrenschmidt
2009-02-03 3:47 ` Linus Torvalds
2009-02-03 4:03 ` Benjamin Herrenschmidt
2009-02-03 6:07 ` Benjamin Herrenschmidt
2009-02-03 15:48 ` Linus Torvalds
2009-02-03 22:59 ` Benjamin Herrenschmidt
2009-02-03 23:23 ` Rafael J. Wysocki
2009-02-03 16:33 ` Jesse Barnes
2009-02-03 0:15 ` Linus Torvalds
2009-02-03 0:58 ` Benjamin Herrenschmidt
2009-02-03 3:51 ` Benjamin Herrenschmidt
2009-02-03 3:55 ` Benjamin Herrenschmidt
2009-02-03 4:09 ` Linus Torvalds [this message]
2009-02-03 4:21 ` Benjamin Herrenschmidt
2009-02-03 9:26 ` Rafael J. Wysocki
2009-02-03 17:04 ` Reworking suspend-resume sequence (was: Re: PCI PM: Restore standard config registers of all devices early) Rafael J. Wysocki
2009-02-03 17:59 ` Linus Torvalds
2009-02-03 18:31 ` Linus Torvalds
2009-02-03 18:41 ` Ingo Molnar
2009-02-03 18:32 ` Jesse Barnes
2009-02-03 18:46 ` Linus Torvalds
2009-02-03 19:03 ` Linus Torvalds
2009-02-03 19:13 ` Ingo Molnar
2009-02-03 19:38 ` Linus Torvalds
2009-02-03 19:53 ` Ingo Molnar
2009-02-03 20:04 ` Ingo Molnar
2009-02-03 20:18 ` Linus Torvalds
2009-02-03 20:57 ` Ingo Molnar
2009-02-03 21:04 ` Ingo Molnar
2009-02-03 21:12 ` Thomas Gleixner
2009-02-04 10:07 ` Russell King
2009-02-03 21:18 ` Linus Torvalds
2009-02-03 19:19 ` Linus Torvalds
2009-02-03 21:11 ` Benjamin Herrenschmidt
2009-02-03 21:53 ` Rafael J. Wysocki
2009-02-03 22:33 ` Benjamin Herrenschmidt
2009-02-03 22:44 ` Rafael J. Wysocki
2009-02-03 23:05 ` Benjamin Herrenschmidt
2009-02-03 23:18 ` Linus Torvalds
2009-02-04 0:27 ` Benjamin Herrenschmidt
2009-03-04 8:02 ` Pavel Machek
2009-03-04 23:25 ` Benjamin Herrenschmidt
2009-03-05 8:19 ` Pavel Machek
2009-03-05 19:09 ` Rafael J. Wysocki
2009-02-03 23:25 ` Rafael J. Wysocki
2009-02-04 0:46 ` Linus Torvalds
2009-02-03 21:02 ` Benjamin Herrenschmidt
2009-02-03 21:56 ` Rafael J. Wysocki
2009-02-03 17:53 ` PCI PM: Restore standard config registers of all devices early Linus Torvalds
2009-02-03 21:57 ` Rafael J. Wysocki
2009-02-02 22:48 ` Benjamin Herrenschmidt
2009-02-02 23:00 ` Rafael J. Wysocki
2009-02-03 0:23 ` Benjamin Herrenschmidt
2009-02-03 0:29 ` Rafael J. Wysocki
2009-02-03 0:44 ` Linus Torvalds
2009-02-03 1:32 ` Benjamin Herrenschmidt
2009-02-03 5:06 ` Ingo Molnar
2009-02-03 11:06 ` Peter Zijlstra
2009-02-03 12:09 ` Ingo Molnar
2009-02-02 23:49 ` Ingo Molnar
2009-02-03 22:09 ` Rafael J. Wysocki
2009-02-03 23:13 ` Linus Torvalds
2009-02-02 22:28 ` Benjamin Herrenschmidt
2009-02-02 21:07 ` Benjamin Herrenschmidt
2009-02-02 21:49 ` Rafael J. Wysocki
2009-02-02 22:15 ` Linus Torvalds
2009-02-02 22:33 ` Rafael J. Wysocki
2009-02-02 22:56 ` Rafael J. Wysocki
2009-02-03 0:11 ` Benjamin Herrenschmidt
2009-02-03 0:21 ` Linus Torvalds
2009-02-10 20:25 ` Pavel Machek
2009-02-02 22:57 ` Benjamin Herrenschmidt
2009-02-02 23:22 ` Rafael J. Wysocki
2009-02-03 1:03 ` Benjamin Herrenschmidt
2009-02-10 20:25 ` kmalloc during suspend, was " Pavel Machek
2009-02-02 17:20 ` Rafael J. Wysocki
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